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Guys in the error list now is apearing MAP problems.... EXED volts... and now the car is cutting about 0.6 bar!!!! and i stoped tryng to tune the motronic.... just with original program is running fine! but now is cutting again with no boost! and now? what im doing rong? lol!
Your problem is not with the MAP sensor...
You just wrongly assume it is.
There is also no such fault code for the sensor. You are making it all up based on wrong assumptions.
Your problem is not with the MAP sensor...
You just wrongly assume it is.
There is also no such fault code for the sensor. You are making it all up based on wrong assumptions.
Dear PRJ..... Im not a expert in this montronic! but i garantee you im not that dumb! so if u got some to help me i will be grats! cuz im losting my mind in this car and this motronic wont help!!! i got and other ecu here... and will try it if motronic wont gave me a chance to see whats she can do lol
Sooooo if u got something good to say to me PRJ plz do it!
Guys in the error list now is apearing MAP problems.... EXED volts... and now the car is cutting about 0.6 bar!!!! and i stoped tryng to tune the motronic.... just with original program is running fine! but now is cutting again with no boost! and now? what im doing rong? lol!
0.6 Bar = Stock wastegate spring pressure. This means that the ECU is not controlling the boost, either because it is not getting a boost pressure signal, the MAP sensor is completely dead OR the N75 Wastegate frequency valve is not working or is disconnected. The info below covers all three of these issues. First a general diagram of how all three interact, then the details:
1. The lack of boost signal to the MAP sensor relates to the green plastic hose from the intake manifold, through the moisture trap to the ECU. Read this for more info:
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Example Moisture trap in a RS2 (behind left side front kick panel)
2. The G71 Manifold Absolute Pressure (MAP) sensor receives a boost (or vacuum) signal from the green plastic hose connected to the intake manifold via the moisture trap. It outputs a voltage that the ECU then uses to control the N75 Wastegate Frequency Valve (WGFV).
3. The N75 WGFV receives the signal from the ECU and controls the boost by holding or releasing boost via the wastegate. If it has failed, or is disconnected, either electrically or mechanically (one of the three hoses), boost will not be controlled by the ECU.
Read those and then come back. Note: you can stimulate the ECU to test all the devices it controls, e.g. injectors, WGFV, etc. using this procedure, connected to the diagnostic connectors shown in the photo below:
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RS2'd 93 UrS4 5 spd sedan
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